Complications Associated With Midline Incision for Insertional Achilles Tendinopathy

Endoscopic calcaneal SpeedBridge technique: Decreased postoperative complication rate in insertional achilles tendinopathy

BACKGROUND

An endoscopic calcaneal SpeedBridge technique was described recently. The primary objective of this study was to report the postoperative complications seen with calcaneal SpeedBridge repair. The secondary objective was to report short- and medium-term functional outcomes.

HYPOTHESIS

Postoperative complications are less common with endoscopic vs. open SpeedBridge suturing.

MATERIAL AND METHODS

The endoscopic SpeedBridge technique was used in 9 patients who had insertional Achilles tendinopathy refractory to conservative management. The patients were evaluated at least 24 months after the procedure. Infectious and wound-healing complications were recorded. Visual analogue scale (VAS) scores for pain and patient satisfaction, shoeing difficulties, the European Foot and Ankle Society (EFAS) score, and the Victorian Institute of Sport Assessment-Achilles (VISA-A) score were assessed.

RESULTS

During the mean follow-up of 25.3 months, no complications were recorded. The EFAS and VISA-A scores were 37/40 and 91/100, respectively. The mean VAS scores for pain and satisfaction were 1.7/10 and 9.3/10, respectively. No patients reported shoeing difficulties.

CONCLUSION

Endoscopic calcaneal SpeedBridge suturing is associated with a lower complication rate compared to the open variant. Clinical outcomes are highly satisfactory in the short and middle terms.

LEVEL OF EVIDENCE

IV; retrospective observational cohort study.

Recurrence rates for surgically treated insertional Achilles tendinopathy

INTRODUCTION

Insertional Achilles tendinopathy (IAT) is a challenge for every orthopedic surgeon. Although surgical intervention is difficult to avoid after frustrating conservative therapy, little is known about recurrence of this disorder. Therefore the aim of the study was to assess the recurrence rate after primary IAT surgery.

MATERIALS AND METHODS

The authors previous published cohort on primary IAT surgery was reanalyzed. Patients with a follow-up Foot and Function Index (FFI) at one year and final follow-up were included. IAT recurrence was defined as a FFI worsening between one year and final follow-up of > 6.5 points. General demographics, surgical details, complications, and the patient reported outcome (PROM) were assessed.

RESULTS

Out of 58 included patients (51 ± 14 years), 8 patients (14%) suffered IAT recurrence after an average of 50 ± 25 months. None of the assessed factors was predictive for an IAT recurrence.

CONCLUSION

IAT recurrence after primary surgery occurs in up to 14% of patients.

LEVEL OF EVIDENCE

IV, retrospective cohort study.

Treatment of Insertional Achilles Tendinosis With Polyurethane Urea-Based Matrix Augmentation

INTRODUCTION

Surgical treatment for insertional Achilles tendinosis (IAT) sometimes requires tendon repair augmentation. The purpose of this study is to evaluate the efficacy of polycaprolactone-based polyurethane urea (PUUR) matrix augmentation in the treatment of IAT.

METHODS

A retrospective review was performed in surgically treated IAT. Repairs were augmented with a PUUR matrix. Factors evaluated included date of full weightbearing, patient satisfaction, Visual Analog Scale (VAS) pain score, strength, and ankle motion. The Wilcoxon signed-rank test was used to compare baseline and final follow-up VAS scores.

RESULTS

A total of 18 cases were included in the study. The mean patient age was 54.61 ± 8.25 (40-75) years with a mean follow-up of 163.61 ± 57.81 (92-314) days. Patient satisfaction was obtained on 15 of 18 patients, with 14 patients satisfied with their outcome. Mean VAS for pain significantly decreased from 6.19 ± 1.97 (2.5-9) to 0.83 ± 1.54 (0-5) postoperatively, which was statistically significant (P < .01).

CONCLUSION

Achilles tendon augmentation with the PUUR matrix is a viable option in the treatment of IAT. Its use in this condition has minimal morbidity and can be an alternative to other forms of augmentation.

LEVELS OF EVIDENCE

Level IV: Retrospective case series.

Association of Haglund Deformity Size and Insertional Achilles Tendinopathy

BACKGROUND

We aimed to investigate the effect of Haglund deformity size on insertional Achilles tendinopathy (IAT) using a new measurement system and identify independent risk factors of IAT with Haglund deformity.

METHODS

We reviewed medical records of patients with IAT and age/sex-matched patients with diagnoses other than Achilles tendinopathy. Radiographs were reviewed to identify posterior heel spur, plantar heel spur, and intra-Achilles tendon calcification, and to measure Fowler-Philip angle, calcaneal pitch angle, and Haglund deformity angle and height. We introduced a new measurement system for Haglund deformity angle and height and evaluated its intraobserver and interobserver reliability. Multivariate logistic regression analysis was performed to identify independent risk factors of IAT with Haglund deformity.

RESULTS

Fifty patients (55 feet) were enrolled in the study group, equaling the size of the age/sex-matched control group. The new Haglund deformity measurement system showed excellent intraobserver and interobserver reliability. No significant differences between the 2 groups were noted in Haglund deformity angle and height: 6.0 degrees in both groups, and 3.3 mm vs 3.2 mm in the study and control group, respectively. The study group had significantly higher calcaneal pitch angle, incidence of posterior heel spur, plantar heel spur, and intra-Achilles tendon calcification: 5.2 vs 23.1 degrees (P = .044), 81.8% vs 36.4% (P < .001), 76.4% vs 34.5% (P = .003), and 67.3% vs 5.5% (P < .001), respectively. Multivariate logistic regression analysis identified independent risk factors of IAT: posterior heel spur (OR = 3.650, 95% CI = 1.063, 12.532), intra-Achilles tendon calcification (OR = 55.671, 95% CI = 11.233, 275.905), and increased calcaneal pitch angle (OR = 6.317).

CONCLUSION

Based on our results, the actual size of Haglund deformity as we have reliably measured was not associated with IAT, suggesting a routine Haglund deformity resection may be unnecessary in the surgical treatment of IAT. If patients with Haglund deformity have posterior heel spur, intra-Achilles tendon calcification, or increased calcaneal pitch angle, a higher chance of IAT can be predicted.

LEVEL OF EVIDENCE

Level III, retrospective cohort study.

Minimally invasive surgeries for insertional Achilles tendinopathy: A commentary review

Studies of minimally invasive surgery for insertional Achilles tendinopathy are limited. To establish this surgery, the following techniques must be minimally invasive: Exostosis resection at the Achilles tendon insertion, debridement of degenerated Achilles tendon, reattachment using anchors or augmentation using flexor hallucis longus (FHL) tendon transfer, and excision of the posterosuperior calcaneal prominence. Studies on these four perspectives were reviewed to establish minimally invasive surgery for insertional Achilles tendinopathy. Techniques for exostosis resection were demonstrated in one case study, where blunt dissection around the exostosis was performed, and the exostosis was resected using an abrasion burr under fluoroscopic guidance. Techniques for debridement of degenerated Achilles tendon were demonstrated in the same case study, where the space left after resection of the exostosis was used as an endoscopic working space, and the degenerated Achilles tendon and intra-tendinous calcification were debrided endoscopically. Achilles tendon reattachment techniques using suture anchors have been demonstrated in several studies. However, there are no studies on FHL tendon transfer techniques for Achilles tendon reattachment. In contrast, endoscopic posterosuperior calcaneal prominence resection is already established. Additionally, studies on ultrasound-guided surgeries and percutaneous dorsal wedge calcaneal osteotomy as minimally invasive surgery were reviewed.

Lateral approach for insertional Achilles tendinitis with Haglund deformity

Objective

The study aims to investigate the functional outcome of the lateral approach for insertional Achilles tendinitis (IAT) with Haglund deformity.

Methods

From January 2016 to September 2019, 14 cases of IAT with Haglund deformity that resisted conservative treatment received surgery in our department. A lateral approach was used to debride the bony and soft tissue and reattach the insertion of the Achilles tendon. The Visual Analog Scale (VAS), American Orthopedic Foot and Ankle Score (AOFAS), and Victorian Institute of Sport Tendon Study Group-Achilles Tendinopathy score (VISA-A) were used to evaluate clinical outcomes.

Result

The mean patient age was 39.57 years at the time of surgery. The mean follow-up was 14.74 months. The mean VAS score significantly decreased from 4.86 ± 0.86 preoperatively to 1.21 ± 1.58 postoperatively (P < 0.001). The mean AOFAS score significantly improved from 66.64 ± 6.23 preoperatively to 90.21 ± 11.50 postoperatively (P < 0.001). The mean preoperative and the last follow-up VISA-A were 66 (range 56.75-69.25) and 86 (range 75.75-97.00) points, respectively (P < 0.05).

Conclusion

The lateral approach was effective and safe for IAT with Haglund deformity. Moreover, the mid-term functional outcome was promising.

Level of Clinical Evidence

IV.

[Treatment of Achilles insertional calcific tendinosis using a longitudinal midline incision approach/central tendon splitting approach]

OBJECTIVE

Treatment of Achilles insertional calcific tendinosis through a longitudinal midline incision approach with optional resection of the retrocalcaneal bursa and calcaneal tuberosity (Haglund's deformity).

INDICATIONS

Calcific Achilles tendinosis, dorsal heel spur, insertional tendinosis.

CONTRAINDICATIONS

General medical contraindications to surgical interventions. Fracture, infection.

SURGICAL TECHNIQUE

Longitudinal skin incision medial of the Achilles tendon. Exposure and midline incision of the Achilles tendon with plantar detachment from the insertion site preserving medial and lateral attachment. Resection of a dorsal heel spur and intratendinous calcifications. Optional resection of the retrocalcaneal bursa and calcaneal tuberosity (Haglund's deformity).

POSTOPERATIVE MANAGEMENT

Partial weight bearing 20 kg in 30° plantar flexion in a long walker boot for 2 weeks. Afterwards 2 weeks of progressively weight bearing in 15° plantar flexion and another 2 weeks in neutral ankle joint position in a long walker boot.

RESULTS

A total of 26 feet of 26 patients with calcific Achilles tendinosis were treated with midline incision of the tendon. In all feet calcific tendon parts were resected. In 10 (38%) feet, a prominent dorsal spur was resected, in 12 feet (38%) retrocalcaneal bursa, and in 24 (92%) feet a calcaneal tuberosity. Mean follow-up was 34.5 months (range 2-64 months). Preoperative Manchester-Oxford Foot Questionnaire (MOXFQ) score was 58.2 (±8.1) and postoperatively the score was 22.75 (±6.0). In all, 7 (26.9%) patients stated delayed wound healing; 1 suffered from deep vein thrombosis. Shoe problems were reported by 50% of patients, and 23.1% suffered from par- or dysesthesia. No revision surgery was required.

[Surgical treatment of calcifying insertional Achilles tendinopathy via a lateral approach]

OBJECTIVE

Reduction of pain and swelling over the Achilles tendon insertion while maintaining function.

INDICATIONS

Strong, intolerable pain over the Achilles tendon insertion with chronic, calcifying insertional tendinopathy that does not respond to non-operative treatment over a minimum of 6 months.

CONTRAINDICATIONS

Chronic wounds or severe circulatory deficits at the foot or ankle, irradiating or projected pain, complex regional pain syndrome (CRPS).

SURGICAL TECHNIQUE

The intratendinous heel spur is resected via a lateral approach. The superior surface of the calcaneal tuberosity is trimmed by resection of the dorsal heel spur with the oscillating saw. A second osteotomy at the medial edge of the tuberosity extends to the insertion of the plantaris tendon. With the third osteotomy, the Haglund deformity is resected. At the resulting area with cancellous bone, the Achilles tendon is reinserted with a suture anchor.

POSTOPERATIVE MANAGEMENT

A ventral plastic splint in 20° plantar flexion is worn for a week. Full weight-bearing is allowed in a walking boot with 4 cm heel lift for 6 weeks. The heel lift is then gradually reduced for another 2 weeks. After 8 weeks only an elastic wedge of 1 cm is worn. Physical therapy (isometric exercises) starts in the boot and is intensified after removal of the boot.

RESULTS

Seven of 12 patients treated with that technique for calcifying insertional Achilles tendinopathy (58%) stated being pain free according to the Likert scale, while the remaining 5 patients (42%) reported a "substantial improvement". The VISA‑A score averaged 84 of 100 points. Postoperative complications have not been observed.

Microfragmented Adipose Tissue (M-FATS) for Improved Healing of Surgically Repaired Achilles Tendon Tears: A Preliminary Study

INTRODUCTION

Tendon healing is a complicated process that results in inferior structural and functional properties when compared with healthy tendon; the purpose of this study was to assess the effects of the adjunct of microfragmented adipose tissue (M-FATS) after the suture of a series of Achilles tendons.

METHODS

After complete Achilles tendon tear, 8 patients underwent open suture repair in conjunction with perilesional application of a preparation of M-FATS rich in mesenchymal stem cells. Results were compared with a similar group of patients treated with conventional open suture. Outcomes were evaluated based on range of motion, functional recovery, and complications according to the American Orthopedic Foot and Ankle Society (AOFAS) score and Foot and Ankle Disability Index (FADI). Achilles tendons were examined by ultrasound (US) at 3 months.

RESULTS

The AOFAS and FADI scores showed no differences between the 2 groups. US evaluation showed quicker tendon remodeling in the M-FATS group. Adverse events were not documented for both procedures.

CONCLUSIONS

The combined application of derived M-FATS for tendon rupture is safe and presents new possibilities for enhanced healing.

LEVELS OF EVIDENCE

Level IIIb: Case control study.

Failed Surgery for Achilles Tendinopathy

Treatments of Achilles tendinopathy continue to evolve. The body of literature is inadequate to provide a comprehensive guide to evaluation and treat failed surgeries. Issues related to failed surgical treatment may be divided into infection/wound issue, mechanical failure, and persistent pain. Awareness of the potential problems described in this article will allow surgeons to have a foundation in clinical assessment and making accurate diagnoses. Various surgical treatment options are available and should be executed carefully to treat individualized patient conditions.

Management of Insertional Achilles Tendinopathy

Insertional Achilles tendinopathy is a common condition that can lead to chronic, debilitating heel pain in athletes and nonathletes alike. Conservative treatment options include activity and shoe wear modification, physical therapy, injections, and extracorporeal shock wave therapy. When nonsurgical treatment fails, surgical treatment is recommended. Although there are options aimed at preserving the tendon and débriding the retrocalcaneal bursa and excess bone formation, others are aimed at detaching the Achilles tendon to perform a thorough débridement and subsequent reattachment. Additional or alternate procedures may include a calcaneal closing wedge osteotomy, gastrocnemius lengthening, and flexor hallucis longus tendon transfer. Recent advances in suture anchor techniques further add to the complexity of available options. This review discusses the relevant anatomy, biomechanics, and pathophysiology as well as the recent available evidence for nonsurgical and surgical management of this condition to guide surgeons in selecting the most appropriate treatment for their patients.

Clinical outcomes following surgical management of insertional Achilles tendinopathy using a double-row suture bridge technique with mean two-year follow-up

BACKGROUND

The clinical outcomes following surgical management of insertional Achilles tendinopathy (IAT) vary depending on the surgical technique used to reattach the Achilles tendon following debridement. The aim of this study was to investigate the clinical outcomes of patients with IAT who underwent surgical management with a double-row suture bridge technique used to reattach the Achilles tendon.

METHODS

A retrospective review of consecutive patients diagnosed with IAT, who underwent surgical management utilising a double-row suture bridge technique (Arthex Speedbridge), and a minimum of 3-month follow-up were included. The primary outcome was the Manchester-Oxford Foot Questionnaire (MOXFQ) Index score which is a patient reported outcome measure (PROM). Secondary outcomes included EuroQol EQ-5D-5L health-related quality of life PROM and complication rates.

RESULTS

Between July 2013 and June 2020, 50 consecutive patients (23 male; 27 female) were included. The mean age (± standard deviation) was 52.3 ± 11.3 (range 29.0-84.3). Pre- and post-operative PROM data were available for all cases. The mean follow-up was 2.4 ± 1.9 years. The MOXFQ Index score improved from 48.5 to 12.4 (p < 0.01), EQ-5D-5L improved from 2.7 ± 0.46 to 1.2 ± 0.37 (p < 0.01), and EQ-VAS improved from 48.0 ± 18.4 to 84.1 ± 12.6 (p < 0.01). Four patients had complications which were of minimal clinical relevance and caused no deviation from routine recovery. There were no cases of tendon rupture.

CONCLUSION

This study has demonstrated that surgical management of IAT is safe and effective with clinical improvement in both clinical and general health-related quality of life outcome PROMs.

LEVEL OF EVIDENCE

IV.

ICON 2020-International Scientific Tendinopathy Symposium Consensus: A Systematic Review of Outcome Measures Reported in Clinical Trials of Achilles Tendinopathy

BACKGROUND

Nine core domains for tendinopathy have been identified. For Achilles tendinopathy there is large variation in outcome measures used, and how these fit into the core domains has not been investigated.

OBJECTIVE

To identify all available outcome measures outcome measures used to assess the clinical phenotype of Achilles tendinopathy in prospective studies and to map the outcomes measures into predefined health-related core domains.

DESIGN

Systematic review.

DATA SOURCES

Embase, MEDLINE (Ovid), Web of Science, CINAHL, The Cochrane Library, SPORTDiscus and Google Scholar.

ELIGIBILITY CRITERIA FOR SELECTING STUDIES

Clinical diagnosis of Achilles tendinopathy, sample size ≥ ten participants, age ≥ 16 years, and the study design was a randomized or non-randomized clinical trial, observational cohort, single-arm intervention, or case series.

RESULTS

9376 studies were initially screened and 307 studies were finally included, totaling 13,248 participants. There were 233 (177 core domain) different outcome measures identified across all domains. For each core domain outcome measures were identified, with a range between 8 and 35 unique outcome measures utilized for each domain. The proportion of studies that included outcomes for predefined core domains ranged from 4% for the psychological factors domain to 72% for the disability domain.

CONCLUSION

233 unique outcome measures for Achilles tendinopathy were identified. Most frequently, outcome measures were used within the disability domain. Outcome measures assessing psychological factors were scarcely used. The next step in developing a core outcome set for Achilles tendinopathy is to engage patients, clinicians and researchers to reach consensus on key outcomes measures.

PROSPERO REGISTRATION

CRD42020156763.

Do pre-operative radiologic assessment predict postoperative outcomes in patients with insertional Achilles tendinopathy?: a retrospective database study

INTRODUCTION

Diagnosis and treatment of insertional tendinopathy of the Achilles tendon (IAT) remains a challenge. The aim of this study was to assess the influence of pre-operative radiological pathologies on the patient-reported outcomes following open debridement of all pathologies for IAT.

MATERIALS AND METHODS

In this IRB-approved retrospective correlation and comparative study, patients with pre-operative imaging were identified from the authors' retrospective IAT database comprising of 118 patients. All were treated by a standardized surgical treatment strategy utilizing a midline, transachillary approach and debridement of all pathologies. A total of fifteen radiologic parameters were measured on radiographs (RX) and MRI. The patient-reported outcomes were assessed using the Victorian Institute of Sport Assessment-Achilles questionnaire (VISA-A-G) and the general health questionnaire SF-12 at a minimum follow-up of 12 months. The data are presented as mean ± SD (95% CI).

RESULTS

88 patients (74.6%) with an average age of 50 ± 12 (47-52) years were included. Radiographs were available in 68 patients and MRI in 53. The mean follow-up was 3.8 ± 1.9 (3.4-4.3) years. The overall VISA-A-G was 81 ± 22 (77-86), the SF-12 PCS 54 ± 7 (52-55), and the SF-12 MCS 52 ± 9 (50-54) points. None of the assessed radiological parameters had a significant influence on the patient-reported outcome following surgical treatment for IAT.

CONCLUSION

In this retrospective correlation study, no significant association was found between preoperative radiographic and MRI radiologic parameters for IAT and postoperative patient-reported outcomes (VISA-A-G and SF-12).

Patient-Reported Outcomes of Surgically Treated Insertional Achilles Tendinopathy

BACKGROUND

The aim of this study was to assess the patient-reported outcome measures (PROMs) in patients with insertional Achilles tendinopathy (IAT) treated surgically by debridement of all pathologies through a midline-incision trans-achillary approach (MITA).

METHODS

This is a retrospective cohort study with current follow-up. Patients treated surgically by a MITA, addressing all pathologies of IAT, with at least 12 months of follow-up were included. Demographics, medical history, surgical details, and complications were recorded. Patient-reported outcomes were assessed using the Foot Function Index (FFI), Victorian Institute of Sport Assessment-Achilles questionnaire (VISA-A-G), visual analog scale foot and ankle (VAS-FA), and 12-Item Short-Form Health Survey (SF-12). Longitudinal FFI data were available for 48% of the patients.

RESULTS

A total of 118 patients (63.4%) with a mean follow-up of 50 ± 25 months were included. The FFI improved from 53 (24) preoperatively to 2 (11) points at the final follow-up. The final VISA-A-G score was 93 (26), the VAS-FA score 93 (15), the SF-12 Physical Component Summary 56 (8), and the SF-12 Mental Component Summary 55 (12) points. There was an additional FFI improvement between 12 months and the final follow-up. Up to 47% (VISA-A-G) of patients had residual symptoms. A postoperative shoe conflict was the only parameter negatively affecting the PROMs (P < .001).

CONCLUSION

Addressing all pathologies of IAT by the MITA resulted in overall good postoperative PROMs after 4 years. But up to 47% of patients remained impaired. The only parameter correlating with an impaired PROM was a postoperative shoe conflict.

LEVEL OF EVIDENCE

Level IV, retrospective cohort study.

Clinical and Radiological Outcomes of Operative Therapy in Insertional Achilles Tendinopathy With Debridement and Double-Row Refixation

BACKGROUND

Insertional Achilles tendinopathy (IAT) is a painful pathology in which the strongest and thickest tendon of the human body is affected. Different conservative and operative treatments have been described to address this pathology. This study aimed to evaluate the medium-term clinical and radiological outcomes of patients who underwent a surgical therapy via a longitudinal tendon-splitting approach with debridement and double-row refixation.

METHODS

All patients were assessed pre- and postoperatively using a visual analog scale (VAS), the American Orthopaedic Foot & Ankle Society (AOFAS) Hindfoot Score, the Foot and Ankle Outcome Score (FAOS), and the Foot Function Index (FFI). Additionally, a lateral radiograph of the foot was performed to assess the postoperative result. Forty-two patients with confirmed IAT who underwent surgery between 2013 and 2017 with a longitudinal tendon-splitting approach and tendon refixation using a double-row refixation system were evaluated. The average follow-up was 32.8 (range, 18-52) months. We included 26 female and 16 male patients with an average age of 56.8 (range, 27-73) years.

RESULTS

The mean VAS improved from 8.91 ± 1.0 preoperatively to 1.47 ± 2.5 postoperatively (P< .01). AOFAS scores improved significantly from 51.0 ± 12.5 preoperatively to 91.3 ± 14.3 postoperatively (P< .01). All total and subscores of the FFI and FAOS saw a significant improvement at follow-up (P< .01). Lateral radiographs showed recurrent calcification in 30 patients (71.4%).

CONCLUSION

We found that, at an average of 33 months posttreatment, insertional Achilles tendinopathy via a longitudinal tendon-splitting approach resulted in good outcomes for patients after failure of initial conservative therapy. Recurrent calcification seems to be very common but shows no association with inferior outcomes or the return of symptoms.

LEVEL OF EVIDENCE

Level IV, retrospective case series.

Endoscopic SpeedBridge Procedure for the Treatment for Insertional Achilles Tendinopathy: The Snake Technique

Surgical treatment of insertional Achilles tendinopathy is indicated in case of failure of conservative therapy. A choice is then made within a large spectrum of procedures from minimally invasive techniques such as endoscopic calcaneoplasty to more invasive procedures, such as dorsal closing wedge calcaneal osteotomy. Isolated calcaneoplasties can lead to poor results in cases of pre-existing Achilles tendon lesions; in these cases the tendon disinsertion is justified. In this context, we describe an endoscopic treatment of insertional Achilles tendinopathy.